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Finding the Fourth Proportional to 457,490.01, 631,336.24 and 253,571.59

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Solution

The fourth proportional to 457,490.01, 631,336.24 and 253,571.59 is: 349,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,490.01 : 631,336.24 = 253,571.59 : x
  2. Step 2: Convert to fraction form
    457,490.01/631,336.24 = 253,571.59/x
  3. Step 3: Cross multiply
    457,490.01x = 631,336.24 × 253,571.59
  4. Step 4: Simplify right side
    457,490.01x = 160,088,932,462.17
  5. Step 5: Solve for x
    x = 160,088,932,462.17/457,490.01
  6. Step 6: Final answer
    x = 349,928.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.